commit 7a4ede0047a8613b0e3b72c9d351038f013dd357
author Gerd Hoffmann <kraxel@redhat.com> Mon Jan 20 11:18:04 2020 +0100
committer Gerd Hoffmann <kraxel@redhat.com> Fri Jan 31 08:47:55 2020 +0100
tree db2131f0dceabc26ceed909d1046c1c87669a181
parent 928173659d6e5dc368284f73f90ea1d129e1f57d

audio/oss: fix buffer pos calculation

Fixes: 3ba4066d085f ("ossaudio: port to the new audio backend api")
Reported-by: ziming zhang <ezrakiez@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200120101804.29578-1-kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

audio/ossaudio.c

diff --git a/audio/ossaudio.c b/audio/ossaudio.c
index c43faee..9456491 100644
--- a/audio/ossaudio.c
+++ b/audio/ossaudio.c
@@ -420,7 +420,7 @@
             size_t to_copy = MIN(len, hw->size_emul - hw->pos_emul);
             memcpy(hw->buf_emul + hw->pos_emul, buf, to_copy);
 
-            hw->pos_emul = (hw->pos_emul + to_copy) % hw->pos_emul;
+            hw->pos_emul = (hw->pos_emul + to_copy) % hw->size_emul;
             buf += to_copy;
             len -= to_copy;
         }